水钠锰矿对放射性元素和重金属治理的研究进展

发布时间：2018-01-27 05:38

本文关键词： 水钠锰矿晶体结构基本性能金属离子治理　出处：《中国矿业》2017年S2期 　论文类型：期刊论文

【摘要】：水钠锰矿是表生环境中最常见的层状锰氧化物矿物,因具有特殊的结构,使其具有独特的表面电化学性、阳离子交换性和氧化还原性,对污染体系中的放射性元素和重金属的迁移和转化有重要作用。本文主要介绍了水钠锰矿的晶体结构特征和基本性能,及探讨水钠锰矿对各类金属离子治理的效果和机理,将birnessite的晶体结构特征、基本性能和它在环境治理中的应用联系起来。提出利用矿物进行环境治理、从晶体结构角度去研究水钠锰矿对金属离子治理的效果和机理,依旧是研究的方向和重点。
[Abstract]:Sodium manganite is the most common layered manganese oxide mineral in supergene environment. Because of its special structure, it has unique surface electrochemical properties, cation exchangeability and redox property. It plays an important role in the migration and transformation of radioactive elements and heavy metals in contaminated system. The crystal structure and basic properties of sodium manganese ore are introduced in this paper. The effect and mechanism of sodium manganite on the treatment of various metal ions were discussed, and the crystal structure characteristics of birnessite were discussed. The basic properties are related to its application in environmental treatment. It is proposed to use minerals for environmental treatment and to study the effect and mechanism of sodium-manganese ore on metal ion treatment from the point of view of crystal structure. Still is the research direction and the focal point.
【作者单位】：中国地质大学(北京)科学研究院;
【分类号】：P579;X505
【正文快照】： 随着全球环境污染的日益恶化,保护环境、保障人类健康逐渐受到重视。利用天然矿物治理污染和修复环境,体现天然自净化作用的特点,是继物理法、化学法、生物法之后的第四类污染治理方法—矿物法[1]。锰的氧化物一直是矿物法研究的重点,其中,水钠锰矿是表生环境中最常见的层状锰

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